The hex color #d5f54d is a light color. The web-safe version is Hex
#CCFF66. A complementary color is
#2A0AB2. The grayscale version is
#B2B2B2. A 20% lighter version of the original color is
#FFFF80, and Hex
#A2C21A is the 20% darker color. If the color is saturated by 10%, you get
#D8FC43. If the color is desaturated by 10%, the color
#D2EE57 is obtained.